Section Modulus calculation and optimization

Section Modulus

It is the mesurement of strength of steel material.

It is the geometric properties of cross section of beam which has to be design.

It is the geometric property to calculate the bending stress in a structural member.

It is denoted by z

z=I/ymax

where I-Moment of inertia

y-Distance from NA to extreme layer.

The unit of section modulus is m3

Their are two types of section modulus

1)Elastic section modulus

2)Plastic section modulus